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lesya [120]
4 years ago
11

Find the distance between the two points rounding to the nearest tenth (if necessary).

Mathematics
1 answer:
irina1246 [14]4 years ago
8 0

Answer:

The answer is 15.

Step-by-step explanation:

d =  sqr. root of (x_2 - x_1)^2 + (y_2-y_1)^2}

= sqr. root of  7- - 2 ^ 2 + 3 - - 9 ^ 2

= sqr. root of 9 ^ 2 + 12 ^ 2

= sqr. root of 81 + 144

= sqr. root of 225

= 15

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A trencher digs 5m in 4 hours. How long will it take to dig 30m
attashe74 [19]

Answer:

24 hours, in other words a whole day

Step-by-step explanation:

30m / 5m = 6

4hrs x 6 = 24hours

Therefore, to dif 30m it will take 24 hours.

6 0
3 years ago
Which of the following functions has a rate of change that stays the same? (1 point)
vfiekz [6]

this is the answer y=19x-10

5 0
3 years ago
(1 point) Consider the function f(x)=−x3+2x2+2x+1 Find the average slope of this function on the interval (−2,6). equation edito
Whitepunk [10]

Answer:

Step-by-step explanation:

Given is a function

f(x)=-x^3+2x^2+2x+1

f(6) = -6^3+2(6^2)+2(6)+1\\=-131\\

f(-2) = -(-2)^3+2(-2)^2+2(-2)+1\\=13

Average slope of this function is change of f(x) in (-2,6)/change of x in (-2,6)

= \frac{-131-13}{8} \\=-18

By mean value theorem there exists a c such that f'(c) = -18

i.e. -3x^2+4x+2 =-8\\3x^2-4x-10 =0\\

Using quadratic formula

x = 2.61, -1.277

Out of these only 2.61 lies in the given interval

c = 2.61

7 0
4 years ago
9. State if these three measures
nataly862011 [7]

Answer:

yes

Step-by-step explanation:

7 0
3 years ago
What is the equation of the line shown in this graph? <br><br>any links will be reported<br><br>​
Blizzard [7]

Answer:

y = 1

Step-by-step explanation:

Slope is written in the form y=mx+b. Where m is the slope and b is the y-intercept.

When there isn't a slope, as in the line is flat and it isn't moving up or down, you wouldn't write anything for it. You would just write y equals the y-intercept (y = b).

Likewise, if the y-intercept is at (0,0), then you'd only write y equals the slope (y = mx).

Hopefully this makes sense :)

Btw, I also answered in the main comments earlier, so you can check that out as well.

7 0
3 years ago
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